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improved exhaustive distance computation for geometries such as Archimedean/Penrose E2

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This commit is contained in:
Zeno Rogue 2019-08-02 17:32:01 +02:00
parent e1ec5dbf03
commit 158030c5de
1 changed files with 49 additions and 7 deletions
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50
cell.cpp
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@ -411,6 +411,7 @@ int celldist(cell *c) {
return torusconfig::cyldist(decodeId(c->master), 0);
if(masterless)
return eudist(decodeId(c->master));
if(euclid && (penrose || archimedean)) return celldistance(currentmap->gamestart(), c);
if(sphere || binarytiling || WDIM == 3 || geometry == gCrystal || sol || penrose) return celldistance(c, currentmap->gamestart());
#if CAP_IRR
if(IRREGULAR) return irr::celldist(c, false);
@ -827,6 +828,45 @@ int heptdistance(cell *c1, cell *c2) {
map<pair<cell*, cell*>, int> saved_distances;
set<cell*> keep_distances_from;
set<cell*> dists_computed;
int perma_distances;
void compute_saved_distances(cell *c1, int max_range, int climit) {
celllister cl(c1, max_range, climit, NULL);
for(int i=0; i<isize(cl.lst); i++)
saved_distances[make_pair(c1, cl.lst[i])] = cl.dists[i];
}
void permanent_long_distances(cell *c1) {
keep_distances_from.insert(c1);
if(racing::on)
compute_saved_distances(c1, 300, 1000000);
else
compute_saved_distances(c1, 120, 200000);
}
void erase_saved_distances() {
saved_distances.clear(); dists_computed.clear();
for(auto c: keep_distances_from) compute_saved_distances(c, 120, 200000);
perma_distances = isize(saved_distances);
}
cell *random_in_distance(cell *c, int d) {
vector<cell*> choices;
for(auto& p: saved_distances) println(hlog, p);
for(auto& p: saved_distances) if(p.first.first == c && p.second == d) choices.push_back(p.first.second);
println(hlog, "choices = ", isize(choices));
if(choices.empty()) return NULL;
return choices[hrand(isize(choices))];
}
int celldistance(cell *c1, cell *c2) {
if((masterless) && (euclid6 || (euclid4 && PURE))) {
@ -867,12 +907,12 @@ int celldistance(cell *c1, cell *c2) {
if(saved_distances.count(make_pair(c1,c2)))
return saved_distances[make_pair(c1,c2)];
if(isize(saved_distances) > 1000000) saved_distances.clear();
if(dists_computed.count(c1)) return 64;
celllister cl(c1, 64, 1000, c2);
if(isize(saved_distances) > perma_distances + 1000000) erase_saved_distances();
compute_saved_distances(c1, 64, 1000);
for(int i=0; i<isize(cl.lst); i++)
saved_distances[make_pair(c1, cl.lst[i])] = cl.dists[i];
dists_computed.insert(c1);
if(saved_distances.count(make_pair(c1,c2)))
return saved_distances[make_pair(c1,c2)];
@ -953,6 +993,8 @@ void clearCellMemory() {
allmaps.clear();
last_cleared = NULL;
saved_distances.clear();
dists_computed.clear();
keep_distances_from.clear(); perma_distances = 0;
pd_from = NULL;
}